[close04]

There's a non-exhaustive list here: https://www.intel.com/content/www/us/en/security-center/advi...

Intel® Atom™ Processor C Series

Intel® Atom™ Processor E Series

Intel® Atom™ Processor A Series

Intel® Atom™ Processor x3 Series

Intel® Atom™ Processor Z Series

This being said, this is the current status for my old Atom N270 (2008): https://imgur.com/a/pbeJ306

Unless the tool is wrong, but I think it was generally marketed as a reliable source. In which case maybe someone can recommend a reliable one to test the vulnerability.

[zzzcpan]

Tools usually just check CPUID and system configuration and don't actually test vulnerabilities. And not necessarily interpreting everything correctly. You can do that without running anything, just checking your OS updates and whether your CPU is out-of-order one, i.e. with speculative execution. N270 isn't and therefore isn't vulnerable.

If you want to truly test speculative vulnerabilities, compile this program: https://github.com/Eugnis/spectre-attack (EDIT: although this one probably won't work on N270, since it uses rdtscp, that it doesn't have, need to find version with just rdtsc)